Apparatus for the manufacture of gas.



, PATENTED APR. 91"y 1908. H. w. WDODALL & A. MOD. DUCKHAM. APPARATUSFOR THE MANUI-AUTURE 0F GAS.

3 SHEETS -SHEET 1.

APPLICATION FILED JULY 1, 1904.

v 6 70 fo N m fw PATENTED APR. 21, 1908. LL c A. MOD. DUCKHAM.'

H. W. WOODA APPARATUSTOR THE MANUFAGT-URE 0F GAS.

APPLICATION FILED JULY 1, 1904.

3 SHEETBMSEET 2.

No. 885,808.` PATENTED APE. Zi, 1908. H. W. WOODALL & A. MoD. DUGKHAM.APPARATUS FOR THE MANUFACTURE 0F GAS.-

APPLIOATION FILED JULY l, 1904.

` 3 SHEETS-SHEET 3.

- Dorset,

sereni ordnen.

HAROLD WHITEMN WOOJALL, OF WIMBORNE, AND ARTHUR MCDOUGALL DUCKI'IAM, OF

UPPER PARKSTONE, ENGLAND, TION OF NEW YORK.

ASSIGNORS TO l'SBELL-PORTER COMPANY, A CORPORA- APPARATUS FOR THEMANUFACTUR 0F GAS.

Specification o! Lettere Fatemi.

Fetented ApriI 21, 190B.`

Application Qlelr-Iuly 1, 190i. Serial No, 214,995.

To all whom it may concern:

Be it known that we, H AnoLD W nr'rnMAN Wo0DALL, a-subject of ilisMajesty the King ofGreat Britain and Ireland, und resident of Royston,Wimborne, in the county o Dorset, England, as and water engineer, undAn- 'rnun M c oUGiALL DUCKHAM, a subject of His Majesty the 'King ,ofGreat Britain und Ireland, and resident of Walden, Alexandra road, U erParkstone, in the county of ngland, gas engineer, h'ave invented certainnew. and 7useful improvements in and Connected with 1e Manufacture ofGas, of which the .following is nspecificetion.

'This invention has reference to the menufacture of gas and has for itsobject the continuous production in one and the seme re- I which tort ofcoal gas and water gas, the continuous carbonization of'conl for theproduction oi coal gas bein carried on in the retort simultaneously witthe manufacture ofwater gas latter is enriched 'to' some extent by thehydrocarbons which would otherwise be de ositedin the production of thecoal gas.

' caHyingout this invention we employ a substantially vertical retortinto the top of which the coal is continuously charged and from thebottom o'which the coke is continuvother intermittent retorts,

onsly removed the speed et which theI cool is distilled und passingthrough the retort being 'regulated accordin to the nature of coal undertreatment, the eat of the retort, andthe quality and quantity of gasrequired, the retort being referably heeted in such a manner that t egreatest intensity of heet is about the top of the column of cool whichthus' becomes the zone of most active destructive distillation.

The destructive distillation of coal/in vertical retorts is alreadyknoown, but ne practiced hitherto the rocess has always been1ntermittent so that 1t shared sil the disadvantages of namely the c0nsiderable loss of heat in the quenching of the coke, the loss o1"- gasond heet in opening the retorts for drawing end charging, the greatvariation in the volume of gas given at any one time Aduring the processof destructive distillation' and the large amount of inbor percturethroughout and have been partly or entirei chui-ged with coal atone timeso that time, most of which has to travel u throughV the coul and inclose proximity to t e heated retort for e considerable distance whichbecomes overhented and cracked. Also insuch cases as continuous Workinghes been tried there has been no such method of insurin that the retortwill always remain full an the charge at 'a constant level.

By the resent. invention these disadvantages in tie use 'of .thevertical v retort are overcome for the coal is fed continuously into thetop oi the retort and gravity through it, issuing into a water seal ascoke, which is removed by a suitableconveyer. The gases which are. toheat the retort are burned in fines surndingthe to p thereof so that thecoul entere the retort at the hottest place and most of' thefgas inthecoul is given ofnit once and passes away from the retort. The productsof combustion from the upper fines css down otherA ilues surrounding themidd e and lower parts of the retort thus heatin them und oausin thecompletion of the distillation of the coa and the formation of water gasas hereinafter mentioned, as well obtaining the best duty from the gasesused to beat the retort. The coke on issuing from the retort enters asump containing water. forming a water seal to the retort steamgenerated by the quenching of the coke enters the retort making watergos in the lower portions thereof. It will be seen. that the' retort isboth a still and e generator und is making gus of di'erent qluelities indifferent ports. lf desirable t ie water gas may be allowed to travelthrough the whole of the con-l and coke in the retort .thus passing awaywith thc coal gas, helping the distillation and holding in suspensionmany of the hydrocarbons which .would otherwise have been de osited; orthe whole or port of thc gases o lower illumineting power formed inthelowerpurts ofthe retort muy b e drawnl oil aft some point or pointsbelow the zone of most 'active dis# passes by tilletion `lheges thusdrown et? may be' through the retort is governed by the 'rete at whichthe coke is taken away from the water Seel, the .coal beingl fed intothe retort through e gas tight feeding device 'and i chute whichterminates et the point predetermined as the top level of the cosi. inthe retort. Theieeding devise is so actuated that. the chute is alwaysfuil end en excess of cosi elwo s remains in the feeding leviee.

it will e seen from the above description thet the greater "eert of thelabor corineotion with the distillation of roel s done sway with, eiso'that the quality and quimtit, of the ges given. Oi is under control endi remain @onstaat at any desired velue so long as outside conditionsremain the seme.

o Our invention is illustrated by the secourpelijing drawings on `whichFigure l is e vertical section of s retort suitable for this inventionand with e conveyer for removing the coke from the retort;

Fig. 2 is e seetioxiel plain on line A A of Fig. 1

F 3 is e sectional pien on liuc B B oi Fig.

Fig. 4 is e sectional pien on line C C of Fig.

f 5v is e sectional plan on line Il* i) of A if' emi Fig. 6 is esectional elevation oi' th lower part or" the retort and voiweyer.

The seme letters ot reference indicate the seme parts iii all thefigures.

The retort a of :my iiifdie umieriel and isset in brieliwork i aridsurrounded b3- lues c, The retort is by prelfereiue (wel iu crosssection shown and being larger :it the bottom than at ille top so toprevent the coal from sticking sud facilitarle the discharge of thecoke. 40 By enexominationoi i, 2, 3, #l and 5, it will be seen that theretort parallel trom top to bottoni on ythe longer diumeterlmt tapersori the shorter diameter from the sides shown in the section Fig. 2'which is teken et 4 the top of the 'retort to the sides shown, in. Fig.5 which is 'milieu ai' the bottom el' the retort.

The upper end oi the retort is closed by e. cest iron plete d whichcarries one or more 56 pipes el'ior coni'luctiugtlie gus it is formed inthe retort to the usuel purifying undotlrer apparatus. The ohuief,through which the wel enters the retort from the feeding device y,passes through the plete al and extends 55 shortdisteuce into the retortwhich above the .hollow of the Cliute muy be enlarged desired to allowof the gas 'being teken ewey quickly. l The bottom of the retortis openand hes e e@ @est iron extension k which dips. b eii eetii the surreceof the Water, iu the sump t, iormirig e this extenweter seal or anydesired de y the it sion it may oe more or less cioAJ thereto endsituate below the retort f trikes port it 'the coal :md coke oil' theefmveyi i :uid regidores the delivery otilis coke. T flop A' muy' lieset et any desired eiifgle by tl @lutin w eonuwted to anysuiteoleruezuis! not shown. 'iflie Coke is received on er1 endlesstraveling lmud Z provided with cross bers m :md is thereby cou- Veyed tobe dumped or to be transferred to another eoiiveyer. Arly kind ofeoiweyer suits-oie 'for the purpose may be substituted for that shown.

The feeding device or' e well known type end consists drum g1 revolvingiii s cyiii1-- -fi easing g provided with im epeuirig in p uiiery so tobe iiiled with (zooi om the mute g is passing the mouth thereof and moreor less emptied es it passes the sleuth of theehute f. Anyfeedmg devicemay used so iong es it is gaistigut in eil. positions und delivers intothe chute/in such u manner that the lett er is always "ull end theexcess oi 13o-sl does not joui the rlurrge but remains in the feedingdeice. The retort here illustrated is designed so that tire marximumheut is appl' d et the zone where it is most required. For this purposethe producer gus or like for lie/sting the retort is introduced into the'top flue w irorutlie pesssge 1 st ports -n where it meets sir issuinffthrough ports 0 :md burns, tl'io products oi' combustion passing downthrough ilues c to escape by the icliiiuuey 'llue p. The Atir whichissues through the ports o drewu along olienuels g between vthe tou oi'the liriekwork t sud su irorier pif-erred with nou-oonduetiug umteiiel sand is time pre-liested.

it will be understood that il] ere oeirigeperti'fd vacuum or reducedpressure in the retort, produeed by ilie usuel exheuster, the stes-mgenerated by die quenching of the coke es it descends into the Water inthe sump i is dra-wn up through the het folie in the retort end therebecomes Water ges.

Although iii the foregoing peciiieetiori the retort luis been seid to oes and Vertioei is obvious tire setting ius-y be of one or more retor'tsand eeeir these me be set et mi eng-le or eagles to the horizont-ei sui#cient te. iss-ure the descent oi] the @oel by gravity.

what we Gleim es our iiiventioi end desire to Secure liy Letters Patentis:'-

A device Jfor continuously distiliimg @oei consisting of s. ve celretort, e wetersump into which the lower end oi tire retort dips, e,coureur/er* edspted to partly support the weight of the charge theretort euri to redie coke the bottom o? the seme, .is tight eedizfigdevice adapted to keep e oi eiiveriig ire relstiveiy more @oei to tireretort their they formed that this excess of coal is nmintuined i Inwitness whereof we have hereunto sut in the'feeding device'mnl exerts noundue our hinlds in presence of two witnesses. elosislgrenin the coul inthe rtort, mnt moans HAROLD WHITMAN WOODAMI. nung the letolt onmbtxng oftt coxn- T, K 5 `bustion chamber surrounding the top of the MTHUR MDOUMIbut HM' retort and hues through which the products Witnesses:

0f combustion pass downwardstowards the E. T. GAZE, bottom of theretort. ARTHUR W. JoY

